About Selenium?

What is Selenium used for?

This is what Homeopathy Uses the remedy SELENIUM for according to the provings of this remedy in the MATERIA MEDICA OF HOMEOPATHIC MEDICINE by Dr William Boericke MD :-

SELENIUM METALLICUM
The Element Selenium
(SELENIUM)

Selenium is a constant constituent of bones and teeth.

Marked effects on the genito-urinary organs, and often indicated in elderly men, especially for prostatitis and sexual atony. Great debility; worse, heat. Easy exhaustion, mental and physical, in old age. Debility after exhausting diseases.

Mind.--Lascivious thoughts, with impotency. Mental labor fatigues. Extreme sadness. Abject despair, uncompromising melancholy.

Head.--Hair falls out. Pain over left eye; worse walking in sun, strong odors and tea. Scalp feels tense. Headache from tea drinking.

Throat.--Incipient tubercular laryngitis. Hawking and raising transparent lumps of mucus every morning. Hoarseness. Cough in morning, with expectoration of bloody mucus. Hoarseness of singers. Much clear, starchy mucus (Stann).

Stomach.--Desire for brandy and other strong drink. Sweetish taste. Hiccough and eructations after smoking. After eating, pulsation all over, especially abdomen.

Abdomen.--Chronic liver affections; liver painful, enlarged, with fine rash over liver region. Stool constipated, hard and accumulated in rectum.

Urinary.--Sensation in the tip of urethra as if a biting drop were forcing its way out. Involuntary dribbling.

Male.--Dribbling of semen during sleep. Dribbling of prostatic fluid. Irritability after coitus. Loss of sexual power, with lascivious fancies. Increases desire, decreases ability. Semen thin, odorless. Sexual neurasthenia. On attempting coition, penis relaxes. Hydrocele.

Skin.--Dry, scaly eruption in palms, with itching, Itching about the ankles and folds of skin, between fingers. Hair falls out from brows, beard, and genitals. Itching about finger-joints and between fingers; in palms. Vesicular eruption between fingers (Rhus; Anac). Seborrh艙a oleosa; comedones with an oily surface of the skin; alopecia. Acne.

Extremities.--Paralytic pains in small of back in the morning. Tearing pain in hands, at night.

Sleep.--Sleep prevented by pulsation in all vessels, worse abdomen. Sleepless until midnight, awakens early and always same hour.

Modalities.--Worse, after sleep, in hot weather, from Cinchona, draught of air, coition.

Relationship.--Incompatible: China; Wine.

Compare: Agnus; Calad; Sulphur; Tellur; Phosph acid.

Antidotes: Ign; Puls.

Dose.--Sixth to thirtieth potency. Colloidal Selenium injection for inoperable cancer. Pain, sleeplessness, ulceration and discharge are markedly diminished.
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I hope the information helps you out !
Take Care and God Bless you !

Well, being a man I know men need more selenium than women because a lot of selenium is lost through semen, seriously. You'll notice alot of men's multivitamins have extra selenium and no iron

Although it is toxic in large doses, selenium is an essential micronutrient in all known forms of life. It is a component of the unusual amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient which functions as cofactor for reduction of antioxidant enzymes such as glutathione peroxidases and thioredoxin reductase. It also plays a role in the functioning of the thyroid gland by participating as a cofactor for thyroid hormone deiodinases [2]. Dietary selenium comes from cereals, meat, fish, and eggs. The recommended dietary allowance for adults is 55 micrograms per day. Liver and Brazil nuts are particularly rich sources of selenium. A list of selenium rich foods can be found on The Office of Dietary Supplements Selenium Fact Sheet.

Men take selenium for prostate health and to help keep PSA numbers low.

States like the Dakotas that have high selenium levels in the soil have less documented cancer rates than states with low or no selenium in the soil; thus indicating that supplemental selenium may help forestall certain types of cancer in both women and men.